Improvement in spark-arresters



aan eine* CHARLES L; rrnnronr, or DURAND, WISCONSIN.

Letters Patent No. 110,676, dated January 3,1871.

IMPROVEMENT IN SPARK-ARRESTERS.

The Schedule referred to these Letters Patent and making part o f the same.

To all whom it may concern Be it known that I, CHARLES L. PIERPONT, of Durand, in the county of Pippinwand' State of Wisconsin,

-haveinvented anew and useful Improvementin Sparkvforming part ot' this specifica-tion, in which the figure is-a detail sectional viewof my improved spark-arf rester.

My invention has for its object to furnish a simple and eective spark-arrester for attachment to engine smoke-stacks and It consists in the construction and combination of the various parts of the apparatus, as hereinafter more fully described.

A represents the-smoke-stack, the upper end of which is enlarged,l as shown in the figure.-

Upon the upper edge of the stack A is formed" a flange, B, the lower part of which is contracted, as shown in the igure,.giving it the appearance of the frustum of an inverted cone.

C is the reservoir to receive the sparks, which is made wider at its upper end than at its lower end, the upper end of said reservoir or receiver being made wider than the lower end of the ange B, as shown in the gure,

The reservoir C is supported in place by arms or 'braces D, the upper ends of which are attached to the said reservoir, and the lower ends of which are attached to the smokestackA- The bottom c of the reservoir C is made convex upon its outer or lowerside, and concave upon its inner or upper side, and' has an opening formed in its center', in which opening is secured the upper end ot' a pipe, E, which extends down into the stack A.

F is a double cone, suspended just below the lower end of the pipe E by the arms G, the upper en'ds of' which are secured to-the said pipe E.

This double cone prevents the main blast through the stack A from passing up the pipe E, and alsoprevents the sparks ti'om lodging upon the upper side of said double cone. p

By this construction the smoke, einders, sparks, 85e., pass up around the reservoir O. The smoke passes around the lower edge ofthe ange' B and escapes at the top of the stack. y

The sparks, cinders, te., are stopped by the a'nge B, and fall down into the receiver G, from which'they escape through the pipe E.

Having thus described my invention,

I claim as new and desire to secure by Letters Patent The spark-arrester, formed by the combination of the flange B, spark-receiverO of, pipe E, and double cone F, with each other and with the smoke-stack A, said parts being constructed and operating substantially as herein shown and described.

CHARLES L. PIERPONT.

Witnesses H. E. HoUeHToN, `SIDNEY A. Fosrnn. 

